New Zealand Journal of Agricultural Research abstracts
Evaluation of aluminium-tolerant white clover (Trifolium repens)
selections on East Otago upland soils
J. R. CARADUS
AgResearch
Grasslands Research Centre
Private Bag 11-008
Palmerston North, New Zealand
J. R. CRUSH
L. OUYANG
AgResearch
Ruakura Research Centre
Private Bag 3123
Hamilton, New Zealand
W. FRASER
AgResearch
Invermay Agricultural Centre
P.O. Box 50-034
Mosgiel, New Zealand
Abstract Growth of 15 legumes was monitored for 3 years on 3
Otago upland soils with 11, 45, or 70 μg g-1 extractable soil
aluminium (Al). Lotus pedunculatus and L. corniculatus produced
the greatest dry matter over the 3 years, with L. pedunculatus producing
superior yields at intermediate and high soil Al sites. Within white clover,
types selected for Al tolerance produced similar yields to types selected for
Al susceptibility, and four commercial white clover cultivars and an alsike
clover (Trifolium hybidum). Caucasian clover (T. ambiguum)
spread by rhizomes at the high Al site, but neither Lotus species
spread from the planted row. Some white clovers showed limited spread. It is
concluded that optimising performance of Lotus and Caucasian clover on
these soils will be a more productive strategy than breeding for Al-tolerance
in white clover.
Keywords aluminium tolerance; Lotus; Caucasian clover;
soil acidity; Trifolium repens; white clover
New Zealand Journal of Agricultural Research, 2001, Vol. 44: 141-150
0028-8233/01/4402&3-0141 $7.00/0 (c) The Royal Society of New Zealand
2001
PDF file of entire paper: medium quality (587K); (scanned from paper original: notes about this process)
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